Shriek (Ex)

Light sources or movement within 10 feet of a shrieker causes it to emit a piercing sound that lasts for 1d3 rounds. All creatures within 30 feet of a shrieker when it emits this noise must succeed on a DC 11 Fortitude save or take 1d4 sonic damage each round. A creature that successfully saves is not subject to the same shrieker’s noise for 24 hours. The save DC is Constitution-based.

This mindless plant emits a loud, piercing wail when living creatures pass near it. Underground denizens have learned the noise indicates the presence of prey, and flock to its source. The remnants of creatures slain around the shrieker fertilize it. Shriekers often form symbiotic relationships with other plant creatures, such as violet fungus and phantom fungus, and attract creatures with their shriek which are then slain by the more mobile plants.

Some underground denizens cultivate shriekers as guards and intruder alarms.